Hi...and welcome!
Sorry to hear of your circumstances, but glad you can find some comfort in guitar. It's good to have a constructive outlet.
I'm new here myself, but my situation is similar to yours. I took lessons years ago and could play, but I wanted to step my playing up a few notches and learn some more songs.
What I did was I started with the core learning lessons. They consist of fundamentals I and II and then you can branch off into country, rock, or blues. I started at the complete beginning. Since I already new some stuff, I breezed through much in the very beginning, but picked up a thing or two here and there. It was good review. I then embarked on the blues branch which is where I'm now working.
So I would suggest going to the core lessons and start from the very beginning. You'll likely blow through the first part, but it will be good review and it will give you some confidence. Eventually you will hit a point where it is not so easy...and you go from there.
At the same time, browse the song library to see if there are songs you are interested in that may be at your current level. Personally, I like to learn songs and technique at the same time.
Best of luck! Have fun!